Two workers

The first worker would himself completed the work in 8 hours, the other in 6 hours. After two hours of joint work, the worker left the first worker to a doctor, and others completed the work himself. How many hours worked the other worker himself?

Correct result:

t =  2.5 h


2•(1/8 + 1/6) + t/6 = 1

4t = 10

t = 5/2 = 2.5

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